title: [Effect of pulmonary artery blood pressure gas exchange in functionally heterogeneous lungs].
abstract: Effect of the gravity-dependent nonuniformity of the ventilation-perfusion ratios on gas exchange in the human lungs has been analyzed. Quantitative relationships have been obtained between alveolar-arterial oxygen tension difference, arterial-alveolar carbon dioxide tension difference and pulmonary arterial pressure, for various compositions of mixed venous blood and various mean ventilation-perfusion ratios. The data obtained may be used for the measurement of pulmonary arterial pressure.
mesh_terms: D001794:Blood Pressure; D002245:Carbon Dioxide; D006801:Humans; D008168:Lung / Q000502:physiology*; D008433:Mathematics; D008954:Models, Biological; D010100:Oxygen; D011652:Pulmonary Circulation; D012119:Respiration; D014692:Ventilation-Perfusion Ratio
chemical_list: D002245:Carbon Dioxide; D010100:Oxygen
vernacular_title: Vliianiie davleniia krovi v legochnoĭ arterii na gazoobmen v funktsional'no neodnorodnykh legkikh.